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81.
82.
Electrophysical, hydro-gas-dynamic, and thermal characteristics of a discharge arising between liquid electrodes are considered. Spatial visualization of flow patterns in the gas discharge region is performed by using the schlieren technique. 相似文献
83.
For the electrically actuated microbeam subjected to a combination of DC and AC voltage loadings, we studied the nonlinear dynamical responses and internal resonance analytically. The flexible boundary condition is considered. The modal interaction due to three-to-one internal resonance between the first and second modes is highlighted. The method of multiple scales is employed to get the modulation equation, which describes the amplitude and phases of the involving modes. Then, the equilibrium solutions of the modulation equation are calculated and their stability is examined. The frequency and force response curves reflecting the primary resonance (the first mode) are presented. We find that the first and second modes in the proposed model are coupled, and hence the energy transfer can occur between the involving modes. Moreover, it is found that the response of the system may encounter Hopf bifurcation for some specific parameters. As for simulation, the Galerkin scheme is applied to verify the analytical results in terms of time history, phase-plane portrait, Fourier spectrum, and Poincare section. The simulation results are in good agreement with the analytical ones. 相似文献
84.
Nonlinear Dynamics - In this paper, various nonlinear dynamics of a one-degree-of-freedom shallow arch model are investigated. The arch is subject to an imposed displacement of its support that is... 相似文献
85.
El-Shehry M. F. El-Hag F. A. A. Ewies E. F. 《Russian Journal of Organic Chemistry》2020,56(1):129-136
Russian Journal of Organic Chemistry - 6-[2-(Furan-2-yl)ethyl]-3-sulfanylidene-3,4-dihydro-1,2,4-triazin-5(2H)-one (1) reacted with chloroacetone to give S-acetonyl derivative which cyclized in... 相似文献
86.
87.
Terekhova N. V. Tatarinov D. A. Mikulenkova E. A. Mironov V. F. Brel V. K. 《Russian Chemical Bulletin》2020,69(11):2147-2152
Russian Chemical Bulletin - A convenient synthesis of benzylic phosphonates and 2,3-dihydrobenzo[d][1,2]oxaphosphole 2-oxides substituted at the aromatic ring, as well as their precursors,... 相似文献
88.
Alimardanov H. M. Veliyeva F. M. Garibov N. I. Musayeva E. S. 《Russian Journal of Applied Chemistry》2020,93(5):729-740
Russian Journal of Applied Chemistry - Liquid-phase oxidation of styrene with hydrogen peroxide in the presence of a catalytic system based on (NH4)10W12O41 + Ce(NO3)3 + H3PO4, supported on a... 相似文献
89.
Chernyaev A. P. Bliznyuk U. A. Borshchegovskaya P. Yu. Nikitina Z. K. Gordonova I. K. Studenikin F. R. Ipatova V. S. 《Physics of Particles and Nuclei Letters》2020,17(4):611-614
Physics of Particles and Nuclei Letters - Chilled minced trout has been treated by 1-MeV electron-beam irradiation using the UELR-1-25-T-001 industrial electron accelerator. The results of the... 相似文献
90.
I. M. Sakhautdinov G. F. Sakhautdinova A. G. Mustafin 《Russian Journal of General Chemistry》2020,90(2):244-248
Bromo- and chloromethyl ketones based on N-phthalyl-substituted amino acids have been synthesized via the Arndt–Eistert reaction. The products [2+1] cycloaddition to the fullerene scaffold has afforded the monoadducts of fullerene C60. 相似文献